Unit of Measure for this product is Piece(s)
This beautiful Faceted Octagon
Glass Button with Shank attachment will add an elegant touch to
your garments and accessories. The glass button has a faceted
emerald diamond cut shape that will shine brilliantly when moved
in the light. This Faceted Octagon Glass Button will look
gorgeous on evening gowns, fur coats, silk button downs, beaded
blazers and dress pants. Try adding this button to your accessory
pieces such as necklaces, handbags, hats and earrings for a
modern look. The button is made from glass material. To avoid
damage do not place glass buttons in a washing machine or dryer.
Available in one color and sizes 14mm x 10mm, 18mm x 13mm, and
20mm x 15mm.
here for Shank Style Button Detail
For exact measurements of the button, print Button Size